156B Week 2

Overview of Status of Analysis, Design, Fabrication, Tests, etc

• • Updated CAD of Pre-built/DIY unloading/loading system

  • Power Belt FBD analysis completed

  • Guided Rail FBD analysis completed

  • Performed tests for sensor position accuracy (aluminum/steel plate) 

    • maximum +/- 5mm position error

Accomplishments from Previous Week

• • Got quotes for CNC "pillow" holders 

  • Made contact with MAE 156B Winter Team

  • Established objectives: Power Belt, Increase flow rate 

  • Established secondary objectives: Automated gauge size detection, other fluid

  • Set objectives' timeline

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Start purchasing hardware for Loading/Unloading (Elaine, Desi)

  • Find and purchase the right stepper motor /upgraded PLC (Justin)

    • Research mechanism for heated glycerin/flexible z-axis nozzle

• Finalize analysis for curved rollers (Ethan)

  • Start purchasing powered conveyor (Ethan)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • 4/3/2020

  • Sponsor allows us to take the hardware + glycerol back home

  • Sponsor recommends on removing the funnel for faster fill rate

  • Only has drawings for metal base plate and top part of the gauge holder

  • Prefers smaller footprint (DIY roller option)

  • May put in order for 12 gauge holders, ideally in 2 weeks (TBA)

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • 4/1/2020

  • Gave us access to winter quarter website and report

  • General reminder of adjustments (social distancing, school policy) due to the virus

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • N/A

Risks and Areas of Concern

• • Uncertainty due to DIY guiding rails (will realistic friction be too high from the sheet metal? can we make it with a 45 degree angle? If not, what's the tolerated angle or curve that will actually perform the task?)

  • Mechanism that allows for loading to guarantee spacing in between each gauge holder (if they're all attached, the sensor mechanism will not work)

Resources or Information Required but not Available

Schedule

• • Design Proposal Presentation 4/7/2020

  • Gantt chart is updated

Budget (list amount spent and amount remaining)

• • Spent: $1036.06

  •  Remaining: $8963.94

Progress on Report and Webpage

• • Gantt chart has been updated (tailored for Week 1-4)